158 



PRACTICAL MICROSCOPY. 



acinus, and the lining cells broaden, frequently become polyhedral, 

 and are bluntly pointed. The cells so nearly fill the acini as to leave 

 a small and not easily recognized lumen. 



The gland is richly supplied with blood-vessels. 



THE SUBMAXILLARY GLAND. 



The submaxillary is presented as an example of a typical mucous 

 gland. As I have previously said, the general arrangement is not 

 unlike that of the other salivary glands. 



Similar structures are found in the submucosa of the mouth, 

 tongue, fauces, trachea, and the larger bronchi. 



Its peculiarity appears in the parenchyma, and will be noticed later. 



FIG. 108. SECTION FROM THE PANCREAS. 



A. Wall of a large duct. 



B. The somewhat cubical lining cells. 



C. Arteries. 



D. Lumen of the acini, T. S. 



E. Terminal duct entering a lobule. 



F. Acini in L. S. 



